let's turn - there is a lot on the plate here, the foreign policy plate. then there is afghanistan, where afghan president hamid karzai has refused to sign a bilateral security agreement or bsa as it is called, with the united states until sometime after the election in 2014 and also he has to get some of his demands met first. national security advisor, president obama's national security advisor susan rice responded to that. here she is. >> if the agreement isn't signed properly, what i said to the president is we would have no choice, we would be compelled by necessity, not by our preference, to have to begin to plan for the prospect that we will not be able to keep our troops here because they will not be invited because of the bsa will not have been signed. >> and that's the threat, general, is that the u.s., which had said that we along with our allies intended to keep a residual force, which was going to be 10, 15,000 troops in afghanistan after the general pullout at the end of 2014 that we might have to go to the zero option and just pull out all